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Finding the Fourth Proportional to 303,535.55, 455,430.90 and 163,130.15

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Solution

The fourth proportional to 303,535.55, 455,430.90 and 163,130.15 is: 244,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,535.55 : 455,430.90 = 163,130.15 : x
  2. Step 2: Convert to fraction form
    303,535.55/455,430.90 = 163,130.15/x
  3. Step 3: Cross multiply
    303,535.55x = 455,430.90 × 163,130.15
  4. Step 4: Simplify right side
    303,535.55x = 74,294,511,031.64
  5. Step 5: Solve for x
    x = 74,294,511,031.64/303,535.55
  6. Step 6: Final answer
    x = 244,763.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.